CN104453985A - Water-sealing fire-retarding explosion-venting device and control method thereof - Google Patents
Water-sealing fire-retarding explosion-venting device and control method thereof Download PDFInfo
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- CN104453985A CN104453985A CN201410755390.3A CN201410755390A CN104453985A CN 104453985 A CN104453985 A CN 104453985A CN 201410755390 A CN201410755390 A CN 201410755390A CN 104453985 A CN104453985 A CN 104453985A
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- water
- water seal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fire-retarding explosion-venting device and control method thereof and belongs to the field of security transportation of low-concentration gas pipelines. The device comprises a water-sealing cavity, an explosion venting cavity, a water-storage cavity and a control device. By the application of the device, the reliability of the detection and control of water level of the device for water-sealing fire retardance explosion venting is fundamentally improved, quick water supplementing and water sealing functions at the time of gas combustion and explosion are realized, quick flowing-back of sealed water to an air inlet line at the moment of explosion is avoided, the reliability and explosion venting and water-sealing effects can be highly improved, and security of pipeline transportation system of low concentration gas is guaranteed.
Description
Technical field
The present invention relates to a kind of safety guard of gas tube induction system, be specifically related to a kind of water-sealing fire-retardant explosion venting device, belong to low concentration gas pipe safety transportation art.
Background technology
According to AQ1076-2009 " coal mine light concentration mash gas Cemented filling safe-guard system design specifications ", water-sealing fire-retardant explosion venting device is the first order safety guarantee facility of gas electricity conveyance conduit and ground gas emptying pipe.Gas combustion and explosion time in pipeline, water-sealing fire-retardant explosion venting device should play in the very first time and stop flame to pass through and the effect of access to plant admission line, erects first safety guarantee for avoiding causing fire damp to explode.But there is the problems such as the slow and poor reliability of water level monitoring/control difficulty, water seal speed in current monotubular and bitubular water-sealing fire-retardant explosion venting device, for effective utilization of underground coal mine low concentration gas brings hidden danger.
Summary of the invention
In order to the reliability of the water level detecting and control that fundamentally improve water-sealing fire-retardant explosion venting device, realize quick moisturizing and the water seal effect of gas combustion and explosion time, venting of dust explosion is avoided to seal water quick backflow instantaneously to air inlet pipeline, the invention provides a kind of three-chamber water-sealing fire-retardant explosion venting device with closure gate, fundamentally solve the problem, significantly improve the safety and reliability of low concentration gas pipe-line transportation system.
A kind of water-sealing fire-retardant explosion venting device provided by the invention, is characterized in that: comprise three chambeies and control device, and three chambeies are respectively water seal cavity, venting of dust explosion chamber, water storage cavity;
Described water seal cavity top is provided with water seal cavity upper cover, upper cover center is provided with inspection hole, bottom is provided with water seal cavity low head, water seal cavity plugging device is provided with above water seal cavity low head, water seal cavity plugging device is fixed on shutoff seat, on the left of water seal cavity, lower end is provided with gas inlet pipe road, the bottom of gas inlet pipe road in water seal cavity is provided with shunting net, on the right side of water seal cavity, upper end is provided with the first connecting line, water seal cavity right side central is provided with the first level sensor, on the right side of water seal cavity, lower end is provided with the 3rd connecting line, water seal water replenishing pipe is provided with above 3rd connecting line, water seal water replenishing pipe is positioned at below shunting net plane, water seal drainage pipe is provided with below 3rd connecting line, water seal water replenishing pipe and water seal drainage Guan tri-connecting line homonymy are arranged, on the left of water seal cavity, lower end is provided with water seal water level observation window,
Described venting of dust explosion chamber is communicated with water seal cavity by the first connecting line, the end of the first connecting line is provided with closure gate, venting of dust explosion top of chamber is provided with venting of dust explosion chamber upper cover, upper cover center is provided with venting of dust explosion sheet, bottom is provided with venting of dust explosion chamber low head, be connected with water storage cavity by the second connecting line bottom low head, the right side in venting of dust explosion chamber is provided with gas export line;
Described water storage cavity to be positioned at below venting of dust explosion chamber and to be arranged in parallel with venting of dust explosion chamber, water storage cavity top is provided with water storage cavity upper cover, the second level sensor is provided with above upper cover, water storage cavity low head is provided with bottom water storage cavity, water storage cavity passes on left the 3rd connecting line and is communicated with water seal cavity, water storage cavity water seal water replenishing pipeline is provided with above 3rd connecting line, bottom water storage cavity, water storage cavity water seal water replenishing pipeline is provided with water seal water replenishing valve, water storage water level observation window is provided with on the right side of water storage cavity, be provided with water storage filling pipe above observation port, below is provided with water storage gutter;
Described control device comprises the first level sensor, the second level sensor, supplementing water pressure sensor, moisturizing electrical ball valve and draining electrical ball valve, first level sensor, the second level sensor, supplementing water pressure sensor, moisturizing electrical ball valve are all connected with controller with draining electrical ball valve, controlled by controller, controller connects acoustic-optic alarm and display terminal.
In such scheme, described controller is PLC.
In such scheme, described water seal cavity plugging device comprises shutoff steel plate, shutoff rubber tile, plugging device guide cylinder, and plugging device guide cylinder is positioned at immediately below shutoff steel plate, posts one deck shutoff rubber tile at the upper surface of shutoff steel plate.Guide cylinder is cylindric.
As another kind of embodiment, described venting of dust explosion chamber and water storage cavity design for integral type, separated, be divided into two chambeies by the venting of dust explosion chamber low head and water storage cavity upper cover being positioned at middle part.
The invention provides a kind of control method of described water-sealing fire-retardant explosion venting device, it is characterized in that: comprise the following steps:
(1) after device power-up, first self-inspection should be completed, initial work state;
(2) namely device initialize enters Real-Time Monitoring state after completing, and namely starts the water level signal that detects and supplementing water pressure signal real-time Transmission to PLC; PLC, by detecting the signal numerical value that obtains and programmed values contrasts, completes following operation:
1., time as the lowest water level of current level in water seal cavity lower than program setting, PLC opens moisturizing electrical ball valve, until stop when the water level in water seal cavity reaches program setting water level;
2., time as the peak level of current level in water seal cavity higher than program setting, PLC opens draining electrical ball valve, until stop when the water level in water seal cavity reaches program setting water level;
3. as supplementing water pressure signal lower than programmed threshold values time, PLC is by flickering display terminal and open acoustic-optic alarm to warn;
4. on display terminal, show the water level in water seal cavity and water storage cavity and supplementing water pressure value in real time.
In practical work process, level sensor and supplementing water pressure sensor are by water level signal and supplementing water pressure signal real-time Transmission to PLC, and PLC completes the real-time adjustment of water level in water seal cavity according to program.When supplementing water pressure is not enough, will glimmers on display terminal and be warned by acoustic-optic alarm.
Water-sealing fire-retardant explosion venting device provided by the invention, the beneficial effect brought: reliability and the venting of dust explosion water seal effect that can increase substantially water-sealing fire-retardant explosion venting device, for low concentration gas pipe-line transportation system provides safety guarantee.
Below in conjunction with drawings and Examples, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is water seal cavity structural representation.
Fig. 4 is venting of dust explosion cavity configuration schematic diagram.
Fig. 5 is water storage cavity structural representation.
Fig. 6 is the structural representation of water seal cavity plugging device.
Fig. 7 is the control block diagram of water-sealing fire-retardant explosion venting device.
In figure 1, water seal cavity, 2, first connecting line, 3, venting of dust explosion closure gate, 4, venting of dust explosion chamber, 5, gas export line, 6, second connecting line, 7, venting of dust explosion cavity main body, 8, moisturizing electrical ball valve, 9, supplementing water pressure sensor, 10, water storage cavity, 11, draining electrical ball valve, 12, water seal water replenishing valve, 13, 3rd connecting line, 14, water seal cavity plugging device, 15, gas inlet pipe road, 16, water seal cavity upper cover, 17, inspection hole, 18, water seal cavity main body, 19, first level sensor, 20, shunting net, 21, water seal water replenishing pipe, 22, water seal drainage pipe, 23, shutoff seat, 24, water seal cavity low head, 25, water seal water level observation window, 26, venting of dust explosion chamber upper cover, 27, venting of dust explosion sheet, 28, venting of dust explosion cavity main body, 29, venting of dust explosion chamber low head, 30, water storage cavity upper cover, 31, second level sensor, 32, water storage filling pipe, 33, water storage water level observation window, 34, water storage gutter, 35, water storage cavity low head, 36, water storage cavity water seal water replenishing pipeline, 37, shutoff rubber tile, 38, shutoff steel plate, 39, plugging device guide cylinder.
Detailed description of the invention
Further illustrate the present invention below by embodiment, but be not limited to following examples.
Embodiment 1:
As shown in Fig. 1 ~ 5, water-sealing fire-retardant explosion venting device provided by the invention, comprises three chambeies and control device, and three chambeies are respectively water seal cavity, venting of dust explosion chamber, water storage cavity;
Described water seal cavity 1 top is provided with water seal cavity upper cover 16, water seal cavity upper cover 16 center is provided with inspection hole 17, bottom is provided with water seal cavity low head 24, water seal cavity plugging device 14 is provided with above water seal cavity low head 24, water seal cavity plugging device 14 is fixed on shutoff seat 23, on the left of water seal cavity 1, lower end is provided with gas inlet pipe road 15, the bottom of gas inlet pipe road 15 in water seal cavity 1 is provided with shunting net 20, on the right side of water seal cavity 1, upper end is provided with the first connecting line 2, water seal cavity 1 right side central is provided with the first level sensor 19, on the right side of water seal cavity 1, lower end is provided with the 3rd connecting line 13, water seal water replenishing pipe 21 is provided with above 3rd connecting line 13, water seal water replenishing pipe 21 and shunting net 20 are on same level line, water seal drainage pipe 22 is provided with below 3rd connecting line 13, water seal water replenishing pipe 21 and water seal drainage pipe 22 are arranged in parallel at the 3rd connecting line 13 homonymy, on the left of water seal cavity 1, lower end is provided with water seal water level observation window 25,
Described venting of dust explosion chamber 4 is communicated with water seal cavity 1 by the first connecting line 2, the end of the first connecting line 2 is provided with venting of dust explosion closure gate 3, top, venting of dust explosion chamber 4 is provided with venting of dust explosion chamber upper cover 26, upper cover 26 center, venting of dust explosion chamber is provided with venting of dust explosion sheet 27, bottom is provided with venting of dust explosion chamber low head 29, be connected with water storage cavity 10 by the second connecting line 6 bottom venting of dust explosion chamber low head 29, the right side in venting of dust explosion chamber 4 is provided with gas export line 5;
Described water storage cavity 10 to be positioned at below venting of dust explosion chamber 4 and to be arranged in parallel with venting of dust explosion chamber 4, water storage cavity 10 top is provided with water storage cavity upper cover 30, the second level sensor 31 is provided with above water storage cavity upper cover 30, water storage cavity low head 35 is provided with bottom water storage cavity 10, water storage cavity 10 passes on left the 3rd connecting line 13 and is communicated with water seal cavity 1, water storage cavity water seal water replenishing pipeline 36 is provided with above 3rd connecting line 13, bottom water storage cavity 10, water storage cavity water seal water replenishing pipeline 36 is provided with water seal water replenishing valve 12, water storage water level observation window 33 is provided with on the right side of water storage cavity 10, water storage filling pipe 32 is provided with above water storage water level observation window 33, below is provided with water storage gutter 34,
Described control device comprises the first level sensor 19, second level sensor 31, supplementing water pressure sensor 9, moisturizing electrical ball valve 8 and draining electrical ball valve 11, first level sensor 19, second level sensor 31, supplementing water pressure sensor 9, moisturizing electrical ball valve 8 are connected with controller respectively with draining electrical ball valve 11, controlled by controller, controller connects acoustic-optic alarm and display terminal.
Fig. 6 shows the structure of water seal cavity plugging device: plugging device guide cylinder 39 is positioned at immediately below shutoff steel plate 38, posts one deck shutoff rubber tile 37 at the upper surface of shutoff steel plate 38.Plugging device guide cylinder 39 be in order to avoid when plugging device is up lifted and shutoff seat suppress strength.And to stick one deck shutoff rubber tile 37 on shutoff steel plate 38 be to allow plugging device more effectively can seal gas inlet pipe road instantaneously.
The operating principle of three-chamber water-sealing fire-retardant explosion venting device of the present invention:
When gas tube is normally carried, low concentration gas flows into water seal cavity from water seal cavity gas inlet pipe road, flowing through in water seal cavity after shunting net, after the first connecting line and venting of dust explosion closure gate, enter venting of dust explosion chamber, then flow out whole water seal explosion venting device by gas export line.Now water seal plugging device is in extreme lower position under gas airflow function, and venting of dust explosion closure gate is in open mode under gas airflow function.Water in water seal cavity also flows into water storage cylinder in the effect lower part of gas air-flow, makes the water level of the water table ratio water seal cylinder of water storage cylinder high.
When the generation gas explosion of water seal explosion venting device gas output end, the high pressure draught that blast produces and shock wave enter venting of dust explosion chamber instantaneously, and venting of dust explosion closure gate is closed immediately under differential pressure action, and venting of dust explosion sheet destroys the high pressure draught that release blast produces.Meanwhile, high pressure air blast to act in water storage cavity on the water surface by the second connecting line, water in water storage cavity is pressed in water seal cavity fast, water under high pressure acts on water seal plugging device soffit by shutoff seat, water seal plugging device is lifted instantaneously and blocks the gas inlet pipe road of water seal cavity.Partial high pressure water in water storage cavity also enters the upper surface of water seal plugging device fast by water seal water replenishing pipeline, allow the gas inlet pipe road mouth of pipe moment in water seal cavity be lived by water seal.Under plugging device and water seal acting in conjunction, guarantee that air blast and flame can not enter gas inlet pipe road, avoid igniting fire damp source of the gas.
The control procedure of three-chamber water-sealing fire-retardant explosion venting device of the present invention is as follows:
(1), after device power-up, first the initial work such as self-inspection should be completed.
(2) namely device initialize enters Real-Time Monitoring state after completing, namely start by detect water level signal and supplementing water pressure signal real-time Transmission to PLC.PLC, by detecting the signal numerical value that obtains and programmed values contrasts, completes following operation:
1. time as the lowest water level of current level in water seal cavity lower than program setting, PLC opens moisturizing electrical ball valve 8, stops until the water level in water seal cavity reaches program setting water level;
2. time as the peak level of current level in water seal cavity higher than program setting, PLC opens draining electrical ball valve 11, stops until the water level in water seal cavity reaches program setting water level;
3. as supplementing water pressure signal lower than programmed threshold values time, PLC is by flickering display terminal and open acoustic-optic alarm to warn;
4. on display terminal, show the water level in water seal cavity and water storage cavity and supplementing water pressure value in real time.
Embodiment 2:
Present embodiments provide another kind of structural configuration mode.
In three chambeies of the present embodiment, venting of dust explosion chamber and water storage cavity design for integral type, but are divided into two chambeies by the upper low head of centre.
No matter this device is three independent cylinders or two independent cylinders (now venting of dust explosion chamber and water storage cavity are positioned at a cylinder) in fact, and whole device is divided into three independently cavitys.Using venting of dust explosion chamber as an independent cylinder, using water storage cavity as an independent cylinder, then they are assembled together, and can realize the function of patent.In an independent cylinder, be divided into venting of dust explosion chamber and water storage cavity with venting of dust explosion chamber low head and water storage cavity upper cover, this is also a kind of mode.
Claims (5)
1. a water-sealing fire-retardant explosion venting device, is characterized in that: comprise three chambeies and control device, and three chambeies are respectively water seal cavity, venting of dust explosion chamber, water storage cavity;
Described water seal cavity top is provided with water seal cavity upper cover, upper cover center is provided with inspection hole, bottom is provided with water seal cavity low head, water seal cavity plugging device is provided with above water seal cavity low head, water seal cavity plugging device is fixed on shutoff seat, on the left of water seal cavity, lower end is provided with gas inlet pipe road, the bottom of gas inlet pipe road in water seal cavity is provided with shunting net, on the right side of water seal cavity, upper end is provided with the first connecting line, water seal cavity right side central is provided with the first level sensor, on the right side of water seal cavity, lower end is provided with the 3rd connecting line, water seal water replenishing pipe is provided with above 3rd connecting line, water seal water replenishing pipe is positioned at below shunting net plane, water seal drainage pipe is provided with below 3rd connecting line, water seal water replenishing pipe and water seal drainage Guan tri-connecting line homonymy are arranged, on the left of water seal cavity, lower end is provided with water seal water level observation window,
Described venting of dust explosion chamber is communicated with water seal cavity by the first connecting line, the end of the first connecting line is provided with venting of dust explosion closure gate, venting of dust explosion top of chamber is provided with venting of dust explosion chamber upper cover, upper cover center is provided with venting of dust explosion sheet, bottom is provided with venting of dust explosion chamber low head, is connected bottom low head by the second connecting line with water storage cavity;
Described water storage cavity to be positioned at below venting of dust explosion chamber and to be arranged in parallel with venting of dust explosion chamber, water storage cavity top is provided with water storage cavity upper cover, the second level sensor is provided with above upper cover, water storage cavity low head is provided with bottom water storage cavity, water storage cavity passes on left the 3rd connecting line and is communicated with water seal cavity, water storage cavity water seal water replenishing pipeline is provided with above 3rd connecting line, bottom water storage cavity, water storage cavity water seal water replenishing pipeline is provided with water seal water replenishing valve, water storage water level observation window is provided with on the right side of water storage cavity, be provided with water storage filling pipe above observation port, below is provided with water storage gutter;
Described control device comprises the first level sensor, the second level sensor, supplementing water pressure sensor, moisturizing electrical ball valve and draining electrical ball valve, first level sensor, the second level sensor, supplementing water pressure sensor, moisturizing electrical ball valve are all connected with controller with draining electrical ball valve, controlled by controller, controller connects acoustic-optic alarm and display terminal.
2. water-sealing fire-retardant explosion venting device according to claim 1, is characterized in that: described controller is PLC.
3. water-sealing fire-retardant explosion venting device according to claim 1, it is characterized in that: described water seal cavity plugging device comprises shutoff steel plate, shutoff rubber tile, plugging device guide cylinder, plugging device guide cylinder is positioned at immediately below shutoff steel plate, posts one deck shutoff rubber tile at the upper surface of shutoff steel plate.
4. water-sealing fire-retardant explosion venting device according to claim 1, is characterized in that: described venting of dust explosion chamber and water storage cavity design for integral type, separated, be divided into two chambeies by the venting of dust explosion chamber low head and water storage cavity upper cover being positioned at middle part.
5. a control method for the water-sealing fire-retardant explosion venting device described in any one of claim 1 ~ 4, is characterized in that: comprise the following steps:
(1) after device power-up, first self-inspection should be completed, initial work state;
(2) namely device initialize enters Real-Time Monitoring state after completing, and namely starts the water level signal that detects and supplementing water pressure signal real-time Transmission to PLC; PLC, by detecting the signal numerical value that obtains and programmed values contrasts, completes following operation:
1., time as the lowest water level of current level in water seal cavity lower than program setting, PLC opens moisturizing electrical ball valve, until stop when the water level in water seal cavity reaches program setting water level;
2., time as the peak level of current level in water seal cavity higher than program setting, PLC opens draining electrical ball valve, until stop when the water level in water seal cavity reaches program setting water level;
3. as supplementing water pressure signal lower than programmed threshold values time, PLC is by flickering display terminal and open acoustic-optic alarm to warn;
4. on display terminal, show the water level in water seal cavity and water storage cavity and supplementing water pressure value in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755390.3A CN104453985B (en) | 2014-12-11 | 2014-12-11 | A kind of water-sealing fire-retardant explosion venting device and its control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410755390.3A CN104453985B (en) | 2014-12-11 | 2014-12-11 | A kind of water-sealing fire-retardant explosion venting device and its control method |
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| CN104453985A true CN104453985A (en) | 2015-03-25 |
| CN104453985B CN104453985B (en) | 2017-06-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104879535A (en) * | 2015-06-15 | 2015-09-02 | 洛阳德正废弃资源再利用有限公司 | Three-level water seal system for refinery gas recycling pipeline |
| CN105042335A (en) * | 2015-06-04 | 2015-11-11 | 太原理工大学 | Low-concentration gas pipeline conveying process monitoring and protecting system based on network |
| CN105369928A (en) * | 2015-11-24 | 2016-03-02 | 江苏华海钢结构有限公司 | Steel structure capable of replenishing water automatically |
| CN106979457A (en) * | 2017-04-18 | 2017-07-25 | 晋中开发区立达机械制造有限公司 | A kind of water seal explosion venting device and its control method |
| CN110251864A (en) * | 2019-06-26 | 2019-09-20 | 安徽宏润工业设备安装有限公司 | A kind of spark suppressing device |
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| CN110251864A (en) * | 2019-06-26 | 2019-09-20 | 安徽宏润工业设备安装有限公司 | A kind of spark suppressing device |
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|---|---|
| CN104453985B (en) | 2017-06-27 |
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